Full Description of Event/Sighting: It looks that this is one of the preferred spots for these crafts. This is the third time I've spotted them, roughly in the same area. While one of these crafts was hovering in one spot, another came, approached the first one and they switch places, so that the second one stands still while the first one takes off. At one point, a very slow moving big airplane approached the area and the crafts vanished. This very weird airplane circled the entire area, but the crafts were gone or dematerialized. Next time I will take my tripod because it is almost impossible to focus. I've managed to film it for about 5 minutes.

Thank you to the witness for their sighting report. I will see if I can get a look at the footage.